Home / 3,209.67-4,428.90-1,950.99

Finding the Fourth Proportional to 3,209.67, 4,428.90 and 1,950.99

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Solution

The fourth proportional to 3,209.67, 4,428.90 and 1,950.99 is: 2,692.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.67 : 4,428.90 = 1,950.99 : x
  2. Step 2: Convert to fraction form
    3,209.67/4,428.90 = 1,950.99/x
  3. Step 3: Cross multiply
    3,209.67x = 4,428.90 × 1,950.99
  4. Step 4: Simplify right side
    3,209.67x = 8,640,739.61
  5. Step 5: Solve for x
    x = 8,640,739.61/3,209.67
  6. Step 6: Final answer
    x = 2,692.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.